SWITCHED RELUCTANCE MOTOR STARTING METHODS

摘要

An improved method of starting a switched reluctance motor uses two neighbouring pairs of coils, both energised, to bring the rotor to its initial position. Then one of pairs of coils is turned off and the rotor is attracted by the other pair of coils to give it an initial rotational speed. An intermediate stage uses just one pair of coils of the motor to bring it up to operational speeds, after which the normal cycling of all the coils can be used.

主权项

1. A method of starting a switched reluctance motor having a plurality of pairs of stator coils, each pair comprising coils that are on opposite sides of the rotational axis of the motor, the method comprising:
energising, at the same time, first and second pairs of the stator coils; waiting for a period for rotary movement of the rotor to reduce; and then turning off a first of the two pairs of coils, while leaving the second pair energised so that the rotor is caused to rotate by the second pair of coils.